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Tech Xplore / AI's 2025 carbon footprint may match New York City, report estimates

By the end of the year, the carbon footprint of global AI systems for the whole of 2025 could equal that of New York City. At the same time, AI's thirst for water could rival that of the world's bottled water market, according ...

Dec 18, 2025 in Energy & Green Tech
Phys.org / Capturing the moment a cell shuts the door on free radicals

For the first time, researchers have been able to show how a cell closes the door to free radicals—small oxygen molecules that are sometimes needed, but that can also damage our cells. The study is published in Nature Communications ...

Dec 22, 2025 in Biology
Phys.org / Instacart ends AI pricing test that charged shoppers different prices for the same items

Instacart will stop using artificial intelligence to experiment with product pricing after a report showed that customers on the platform were paying different prices for the same items.

Dec 23, 2025 in Other Sciences
Medical Xpress / New clues to preventing stillbirth: Research highlights premature placental aging

Flinders University researchers have uncovered a biological process that could explain some stillbirths and pave the way for early detection and prevention.

Dec 22, 2025 in Genetics
Phys.org / Warming may make tropical cyclone 'seeds' riskier for Africa

An existing body of research indicates that climate change is making tropical cyclones wetter and more powerful. Now, a new study is indicating the same thing may be happening to the precursors of these storms: the wet weather ...

Dec 22, 2025 in Earth
Phys.org / SpaceX defends airspace safety ahead of Florida Starship launch plans

With plans to launch the massive Starship from Florida next year, SpaceX defended its commitment to airspace safety after a Wall Street Journal article claimed an explosive mission in early 2025 was a greater danger to some ...

Dec 23, 2025 in Astronomy & Space
Phys.org / International report reveals atmospheric impact of Hunga eruption

An international assessment report has been released to provide definitive statements on the atmospheric impacts from a huge volcanic eruption in 2022.

Dec 18, 2025 in Earth
Tech Xplore / Smart composite combines ceramic strength with metal flexibility for large-scale manufacturing

Since his postdoctoral days at MIT, Hang Yu, associate professor of materials science and engineering, has been wrestling with the challenge of creating a shape-memory ceramic that can be manufactured at scale without breaking. ...

Dec 23, 2025 in Engineering
Phys.org / Scientists urge governments not to wait for global plastics treaty as pollution continues to grow

Scientists are urging governments to act immediately on plastic pollution, warning that waiting for a binding Global Plastics Treaty could mean years of damaging delay while plastic waste continues to accelerate worldwide.

Dec 20, 2025 in Earth
Phys.org / Super Mario Bros. help fight burnout: Study links classic games to boosted happiness

A new study published by JMIR Serious Games reports that popular video games, such as the Super Mario Bros. and Yoshi games, may offer meaningful emotional benefits for young adults. The research, titled "Super Mario Bros. ...

Dec 22, 2025 in Other Sciences
Phys.org / Mixing incentives and penalties found key to cutting carbon emissions long term

A study from a team of researchers that includes faculty from the University of California San Diego and Princeton University shows how a mix of subsidies for clean energy and taxes on pollution can significantly reduce greenhouse ...

Dec 22, 2025 in Other Sciences
Phys.org / Some mammals can hit pause on a pregnancy—understanding how that happens could help us treat cancer

Seals give birth only when conditions are right. After mating, a female seal can delay implantation of the embryo in the uterine wall—pausing pregnancy until she senses that her fat reserves are aligned with the season. ...

Dec 22, 2025 in Biology